1996
DOI: 10.1007/bfb0034672
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Temporal support for geo-data in object-oriented databases

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Cited by 11 publications
(8 citation statements)
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“… Regarding the temporal attributes, it is noteworthy that even though Snodgrass had already identified and defined the relevance of the bi-temporal model as early as 1986, and then Worboys showed its feasibility in GIS, only 13 of the analysed models have taken into account both valid-time and transaction-time. Moreover, only two models, T/OOGDM (Becker et al 1996 and XSTUML (Price et al 2000, Price et al 2002, went one step further in considering a third temporal type for the modelling of additional temporal attributes, such as user-time or existence-time, to represent the availability of elements or the validity of a phenomenon (e.g., expiry date). However, these models do not consider this additional time variable far beyond its being a new attribute.…”
Section: CMmentioning
confidence: 99%
“… Regarding the temporal attributes, it is noteworthy that even though Snodgrass had already identified and defined the relevance of the bi-temporal model as early as 1986, and then Worboys showed its feasibility in GIS, only 13 of the analysed models have taken into account both valid-time and transaction-time. Moreover, only two models, T/OOGDM (Becker et al 1996 and XSTUML (Price et al 2000, Price et al 2002, went one step further in considering a third temporal type for the modelling of additional temporal attributes, such as user-time or existence-time, to represent the availability of elements or the validity of a phenomenon (e.g., expiry date). However, these models do not consider this additional time variable far beyond its being a new attribute.…”
Section: CMmentioning
confidence: 99%
“…This model is an extension of the integrated GIS that incorporates a spatial query language (Roberts andGahegan 1993, Leung et al 1999) and re ected recognition of the importance of being able to access both the cartographic database and operations to be performed. Becker et al (1996) (OOGDM), an extensible, object-oriented data model for geographic information systems. This model is intended to be a general base for the development of geoinformation systems.…”
Section: Real-time Spatial Data Structuresmentioning
confidence: 99%
“…Temporal properties are incorporated by adding instant and interval timestamp key words to the query language. In addition, both Becker et al (1996) and Faria et al (1998) offer text-based query languages; the non-graphical query languages of these models reduce their suitability as conceptual modelling languages. This solution is not suitable for representing temporal or spatial variation at the attribute level, as the timestamp and spatial locations are defined only at the object-component level.…”
Section: Literature Review Of Spatio-temporal Database Modelsmentioning
confidence: 99%
“…In Becker et al (1996) and Faria et al (1998) the authors proposed OO models based on extensions of ObjectStore and O2, respectively. Becker et al (1996) defined a hierarchy of elementary spatial classes with both geometric and parameterised thematic attributes. Temporal properties are incorporated by adding instant and interval timestamp key words to the query language.…”
Section: Literature Review Of Spatio-temporal Database Modelsmentioning
confidence: 99%
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